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Finding the Fourth Proportional to 8,570, 12,857.16 and 2,414

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Solution

The fourth proportional to 8,570, 12,857.16 and 2,414 is: 3,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570 : 12,857.16 = 2,414 : x
  2. Step 2: Convert to fraction form
    8,570/12,857.16 = 2,414/x
  3. Step 3: Cross multiply
    8,570x = 12,857.16 × 2,414
  4. Step 4: Simplify right side
    8,570x = 31,037,184.24
  5. Step 5: Solve for x
    x = 31,037,184.24/8,570
  6. Step 6: Final answer
    x = 3,621.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.